JP2003176850A - Base isolation device and vibration control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration suppressing device capable of easily making longer the natural period and allowing installation even in an underfloor of low height without enlarging its bulkiness. <P>SOLUTION: Upper rollers 11 and 12 installed on the floor 2 of a building and lower roller members 13 and 14 installed on a building foundation 3 are arranged moving on an angle-shaped upper guide rail 15 with the center protruding upward and a bottom-shaped lower guide rail 16 with the center protruding downward. The lower rail 16 is positioned perpendicular to the upper guide rail 15, and the upper roller members 11 and 12 and lower roller members 13 and 14 are arranged rotatable round their axes. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration isolation (seismic isolation) device and a vibration damping (vibration damping) device for suppressing the vibration of a structure such as a building or an installation object such as a device for suppressing vibration. Regarding

[0002]

2. Description of the Related Art Various types of vibration suppressing devices (vibration isolator, vibration damping device) for structures such as buildings and bridges are known. As the vibration isolation device, a device using a laminated rubber or a device using a linear bearing is well known. However, it is difficult to obtain a long period of the natural period necessary for suppressing vibration with a laminated rubber or the like, and when trying to obtain such a long period, the device becomes bulky and large. There was a problem of becoming.

On the other hand, a rolling pendulum type vibration suppression device is also known. As such a rolling pendulum type vibration suppression device, for example, Japanese Patent Laid-Open No. 2000-80817 discloses a rolling pendulum vibration isolation structure. In this rolling pendulum vibration isolation structure, a column portion is arranged between the lower structure and the upper structure. The pillar has a pillar body,
Plate-shaped upper rolling portions and lower rolling portions are provided at the upper and lower ends of the pillar main body. Of these, the upper rolling portion has an upper surface formed in an arc surface convex upward, and the lower rolling portion is formed in an arc surface convex downward. Further, the arc surface of the upper rolling portion and the arc surface of the lower rolling portion are orthogonal to each other in plan view, the arc surface of the upper rolling portion abuts the lower surface of the upper structure, and the arc surface of the lower rolling portion is the lower structure. It is in contact with the upper surface of the object. In such a rolling pendulum type vibration isolation structure, since the natural period for suppressing vibration can be adjusted by the arc surface curvature and the length of the column portion, it is possible to easily increase the natural period. .

[0004]

However, in the rolling pendulum type vibration isolation structure disclosed in the above publication, the curvature must be adjusted in order to lengthen the natural period. Certainly,
It is an advantage that it is possible to lengthen the natural circumference by adjusting the curvature, but for that purpose, the arcs of the upper and lower rolling parts must be formed accurately by adjusting the curvature. Therefore, there is a problem that it takes time to manufacture it.

The natural period T in the rolling pendulum type vibration isolation structure disclosed in the above publication is expressed by the following equation (1).

T = 2π {L ² / (g (R−L))} ^1/2 (1) However, g ... Gravity acceleration, R ... Radius of curvature of arc surface, L ...
The length of the pillar.

As can be seen from the equation (1), the natural period T of the vibration isolation structure can be increased by increasing the radius of curvature and by increasing the length of the column.
At this time, if the column member is lengthened to lengthen the natural period, there is a problem that the vibration isolation structure becomes bulky.
If the vibration isolator becomes bulky, it may not be installed under the floor if the floor is low.

Therefore, an object of the present invention is to make it possible to easily lengthen the natural period, and to install the natural period in a low floor or the like without increasing the bulkiness. It is to provide a vibration suppressing device.

[0009]

The vibration isolator according to the present invention, which has solved the above-mentioned problems, includes an upper moving member which is fixed to a vibration-suppressed object and includes a pair of upper moving bodies facing each other.
An upper guide rail that guides the moving direction of the upper moving member is provided, and a pair of lower moving bodies that are fixed to the support body and that face each other are provided. A pair of upper guides are provided so as to guide the moving direction of the lower moving member, and the pair of upper moving bodies are pivotally supported by upper pivots so as to be swingable around an axis connecting the pair of upper moving bodies. The pair of lower moving bodies are pivotally supported by lower pivots so as to be swingable around an axis connecting the pair of lower moving bodies, and the upper guide rail is vertically movable between the pair of upper moving bodies. Direction, the lower guide rail is bent vertically between the pair of lower moving bodies, and the upper guide rail and the lower guide rail are in contact with each other. It is connected by a member, in which is disposed between the lower movable member and the upper moving member.

In the vibration isolator according to the present invention, the roller moves on the guide rail that bends in the vertical direction,
A vibration-isolating action is exhibited. The cycle at this time can be adjusted by increasing or decreasing the angle of the bent portion of the guide rail. Therefore, it is possible to easily perform the period adjustment for increasing the period. In addition, the bulkiness of the entire vibration isolation device can be kept low. Further, the upper moving member and the lower moving member are swingably supported by respective pivots. Therefore, even when vibration occurs, each moving member can be moved smoothly.

Here, the upper guide rail has a mountain shape whose center projects upward, and the lower guide rail is
It is preferable to form a valley shape in which the center projects downward.

As described above, since the upper guide rails are mountain-shaped and the lower guide rails are valley-shaped, the bulkiness of the vibration isolator as a whole can be kept low.

Further, the upper moving body may include a pair of upper rollers, and the lower moving body may include a pair of lower rollers.

As described above, by using the upper roller and the lower roller as the upper moving body and the lower moving body, respectively, the movement of the upper moving member and the lower moving member at the time of performing the vibration isolation action can be made smooth.

Further, the vibration isolator according to the present invention, which has solved the above-mentioned problems, is fixed to a vibration-suppressed object and has an upper rail whose guide surface forms an arc surface, and is guided by the guide surface of the upper rail to move. A pair of upper moving bodies are provided with an upper moving member attached to the upper link, while being fixed to the support body and provided in a direction orthogonal to the upper rail, and the guide surface forms an arc surface. A lower rail and a lower moving member in which a pair of lower moving bodies that move by being guided by a guide surface of the lower rail are attached to a lower link, and the upper link member and the lower link member are mutually connected by a joining link member. The pair of upper moving bodies are joined so as to be orthogonal to each other, and the pair of upper moving bodies are pivotally attached to each other so as to be rotatable around an axis along the longitudinal direction of the upper link member. The lower moving bodies are those that are respectively rotatably hinged longitudinally around an axis along the lower link member.

In the vibration isolator according to the present invention, the influence of the length of the joining link member can be reduced in order to lengthen the period of vibration. Therefore, the length of the joining link member can be kept short even when the period of vibration is increased, and as a result, the bulkiness of the entire vibration isolator can be kept low.

Here, it is preferable that the upper rail has a concave shape with its center recessed upward, and the lower rail has a concave shape with its center recessed downward.

In this way, the center of the upper rail is recessed upward and the center of the lower rail is recessed downward, whereby the bulkiness of the entire vibration isolator can be further suppressed.

Further, the upper moving body is composed of a pair of upper rollers attached to both ends of the upper link member, and the lower moving body is paired with both ends of the lower link member. It is preferably composed of a lower roller.

The vibration isolator according to the present invention, which has solved the above-mentioned problems, is mounted on the lower surface of an object to be vibration-suppressed and has a valley-shaped upper guide rail member whose center projects downward, and an upper surface of a support body. Between the vibration suppression target and the support body, and a mountain-shaped lower guide rail member that is provided in a direction orthogonal to the upper guide rail member and has a central portion that projects upward. A ring member surrounding the upper guide rail and the lower guide rail is disposed, and a pair of moving bodies are provided on the inner surface side of the ring member at equal intervals in the circumferential direction of the ring member. The first moving member and the second moving member are attached, and the pair of moving bodies in both of the moving members include the ring via a pivot shaft that is rotatable around an axis connecting the pair of moving bodies to each other. And a pair of movable bodies of the first moving member are movable along the upper guide rail member, and a pair of movable bodies of the second moving member are the lower guide rail member. It is something that can be moved along.

In the vibration isolator according to the present invention, the roller moves on the guide rail that bends in the vertical direction,
A vibration-isolating action is exhibited. The cycle at this time can be adjusted by increasing or decreasing the angle of the bent portion of the guide rail. Therefore, it is possible to easily perform the period adjustment for increasing the natural period in the vibration isolator. In addition, the bulkiness of the entire vibration isolation device can be kept low.

At this time, the pair of moving bodies of the first moving member sandwiches the projecting portion of the upper guide rail and is attached to the pair of first roller members at opposite positions on the inner surface side of the ring member. It is preferable that the pair of moving bodies of the second moving member are a pair of second roller members that are attached to opposite positions of the ring member with the protruding portion of the lower guide rail interposed therebetween.

In addition, a mode is provided in which a first angle adjusting mechanism for adjusting the rail angle of the protruding portion of the upper guide rail and a second angle adjusting mechanism for adjusting the rail angle of the protruding portion of the lower guide rail are provided. Is preferred.

By providing such an angle adjusting mechanism, the angle of the upper guide rail and the lower guide rail can be adjusted more easily.

Further, an actuator is provided which vibrates the vibration suppression target object provided with the vibration isolator according to any one of claims 1 to 10 with respect to the support body. As a result, the vibration isolation device can be used as a vibration damping device.

Further, a weight is used in place of the vibration suppressing object in the vibration isolator according to any one of claims 1 to 10, and a vibration suppressing object is used in place of the support. It can also be used as a vibration damping device by allowing an object to be used.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in detail with reference to the drawings. The same elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 is a perspective view of the vicinity of the floor surface of a building including the vibration isolation device according to the first embodiment, and FIG. 2 is a plan sectional view thereof.
3 is a side view thereof, and FIG. 4 is an enlarged perspective view of the vibration isolation device.

As shown in FIGS. 1 to 3, three vibration isolation devices 1, 1, 1 according to the present embodiment are provided in the lower floor of the building M which is a vibration suppression object. These vibration isolation devices 1, 1, 1 have the same configuration.
As shown in FIG. 4, the vibration isolation device 1 includes an upper roller member 11, which is a pair of upper moving bodies provided to face each other.
It has an upper moving member with 12. The pair of upper roller members 11 and 12 have the same structure. One of the upper roller members 11 has a rotary shaft 11A, and the roller 1 is provided at both ends of the rotary shaft 11A.
1B and 11C are pivotally attached. Further, the central portion in the longitudinal direction of the rotating shaft 11A is supported by the pivot 11D. The pivot 11D is pin-supported and pivotally supported by an upper roller pillar 11E provided so as to project downward from the back surface of the floor surface 2 of the building which is the vibration isolation target. Similarly, the upper roller member 12 on the other side similarly has the rotating shaft 12A and the roller 12
B, 12C, pivot 12D and upper roller support 12E. Thus, the upper roller members 11 and 12 are
It is attached to the back of the floor 2 of the building. In addition, the rotary shafts 11A and 12A in the upper roller members 11 and 12
Are rotatable about parallel rotation axes X1 and X2, respectively, so that the upper roller members 11 and 12 can move on one common linear rail. Further, the pivots 11D and 12D of both the upper roller members 11 and 12 are arranged in a straight line on the rotation axis Y3 along the Y direction.
For this reason, both upper roller members 11 and 12 have the rotation axis Y3.
It can swing around.

Further, the vibration isolator 1 is composed of a pair of lower roller members 13 and 1 which are provided as opposed to each other and which are lower moving members.
4 has a lower moving member. The pair of lower roller members 13 and 14 has a pair of upper roller members 11 and 12.
Has a shape inverted from above and below, and the constituent members are the same. Therefore, one lower roller member 13 has a rotating shaft 13A, and rollers 13B and 13C are provided at both ends thereof. A pivot shaft 13D is provided at the center of the rotary shaft 13A in the longitudinal direction.
It is pivotally supported by 3E. This lower roller column 13E is
It is erected upward from the upper surface of the structural foundation 3 which is a support. Similarly, a pivot shaft 14D is provided at the central portion in the longitudinal direction of the rotary shaft 14A, and the pivot shaft 14D is pivotally supported by the lower roller support post 14E. This lower roller support 14E
Are erected upward from the upper surface of the structure foundation 3.

Further, the rotary shafts 13A and 14A of the lower roller members 13 and 14 are rotatable around rotary shafts Y1 and Y2 orthogonal to the rotary shafts X1 and X2 of the upper roller members 11 and 12, respectively. The lower roller members 13 and 14 are movable on one common straight rail. Further, the pivots 13D and 14D of both lower roller members 13 and 14
Are arranged in a straight line on a rotation axis X3 orthogonal to the rotation axis Y3 of the upper roller members 11 and 12. Therefore, both lower roller members 13 and 14 can swing around the rotation axis X3.

A linear upper guide rail 15 is provided below the upper roller members 11 and 12.
A linear lower guide rail 16 is provided above the lower roller members 13 and 14. Upper guide rail 1
5 is bent vertically between the upper roller members 11 and 12, is formed so as to project so that the central portion faces upward, and is formed so as to be symmetrical with the projecting portion sandwiched therebetween. There is. One upper roller member 11 travels on the one upper first guide rail 15A, and the other upper roller member 12 travels on the other upper second guide rail 15B.
Runs. Further, a ridge 15C is formed on the upper first guide rail 15A in the widthwise center thereof, and a ridge 15D is formed on the widthwise center of the upper second guide rail 15B. ing. The widths of the ridges 15C and 15D are the same as those of the rotary shaft 11 in the upper roller members 11 and 12.
The lengths of A and 12A are set to be substantially the same.

The rollers 11B and 11C of the upper roller member 11 on one side travel over the ridge 15C provided on the upper first guide rail 15A, and the ridge 15C is formed.
Will guide you in the direction of movement. Similarly, the rollers 12B and 12C of the other upper roller member 12 similarly have the ridges 15 provided on the upper second guide rail 15B.
The vehicle runs across D and is guided in the direction of movement by the ridge 15D.

A refraction portion is formed between the upper first guide rail 15A and the upper second guide rail 15B, and the lower refraction angle θ1 in this refraction portion is set to 150 degrees, for example. . By increasing this angle within the range of less than 180 degrees, it is possible to prolong the vibration cycle of the building M in the Y direction. The refraction angle θ1 is adjusted when the vibration isolation device 1 is provided on the building M, and the angle is maintained.

The lower guide rail 16 is bent vertically between the lower roller members 13 and 14, and is formed so as to project so that the central portion thereof faces downward. The lower guide rail 16 has a symmetrical shape with the projecting portion sandwiched therebetween. Is formed. One lower roller member 13 travels below one lower first guide rail 16A and the other lower second guide rail 16B.
The other lower roller member 14 travels underneath. A ridge 16C is formed below the lower first guide rail 16A at the center in the width direction.
A ridge 16D is formed below 6B at the center in the width direction. The widths of the ridges 16C and 16D are set to be substantially the same as the lengths of the rotation shafts 13A and 14A in the lower roller members 13 and 14, respectively.

The rollers 13B and 13C of the lower roller member 13 on one side travel across the ridge 16C provided under the lower first guide rail 16A, and the ridge 16C is formed.
Will guide you in the direction of movement. Similarly, the rollers 14B and 14C of the other lower roller member 14 similarly have the ridges 16 provided on the lower second guide rail 16B.
The vehicle runs across D and is guided in the direction of movement by the ridge 16D.

A refraction portion is formed between the lower first guide rail 16A and the lower second guide rail 16B, and the upper refraction angle θ2 in this refraction portion is set to, for example, 150 degrees. By increasing this angle in the range of less than 180 degrees, it is possible to prolong the vibration cycle of the building M in the X direction. This refraction angle θ2 is also adjusted when the vibration isolation device 1 is provided on the building M, and is kept at the same angle as the refraction angle θ1 in the upper guide rail 15.

The upper guide rail 15 and the lower guide rail 16 are connected by a connecting member 17. The connecting member 17 includes an upper connecting member 17A fixed to the lower side of the bent portion of the upper guide rail 15 and a lower connecting member 17B fixed to the upper side of the bent portion of the lower guide rail 16. The upper connecting member 17A is a plate-shaped member, and the wide portion thereof is arranged along the longitudinal direction of the upper guide rail 15. Similarly, the lower connecting member 17B is also a plate-shaped member, and the wide portion thereof is arranged along the longitudinal direction of the lower guide rail 16. Also, the upper connection member 17
Notches (not shown) are formed in the joints of both A and the lower connecting member 17B, and the respective notches are fitted together. Thus, the upper connecting member 1
The upper guide rail 15 and the lower guide rail 16 are joined via a connecting member 17 composed of 7A and a lower connecting member 17B. In this way, the upper guide rail 15 has a mountain shape protruding upward, the lower guide rail 16 has a valley shape protruding downward, and the bent portions are joined to each other, whereby the upper guide rail 15 and the lower guide rail 15 are joined together. The height when the rails 16 are joined can be kept low. Therefore, the height of the vibration isolation device 1 itself can be reduced, so that the vibration isolation device 1 can be installed even if the lower floor of the building M is low, for example.

The operation of the building M provided with the vibration isolator 1, 1, 1 having the above-described structure when an earthquake or the like occurs will be described. Since the three vibration isolation devices 1, 1, 1 perform substantially the same movement, one of them will be mainly described and explained. As shown in FIG. 5A, in the vibration isolator 1, the central lower end of the lower guide rail 16 is located at an intermediate position between the lower roller members 13 and 14 when no earthquake or the like occurs. In addition, the upper roller members 11 and 12
Similarly, the central upper end portion of the upper guide rail 15 is also located at the intermediate position.

When an earthquake or the like occurs from this state and vibration in the X direction occurs, the structure foundation 3 relatively moves in the X direction as shown in FIG. 5 (b). Structure foundation 3 is X
When moved in the direction, the lower roller members 13 and 14 move in the X direction relative to the lower guide rail 16.
As a result, the central lower end of the lower guide rail 16 moves away from the one lower roller member 13 and approaches the other lower roller member 14. As the vibration continues,
On the contrary, the central lower end of the lower guide rail 16 moves away from the other lower roller member 14 and approaches one lower roller member 13. By repeating this vibration, the vibration of the floor surface 2 is suppressed, and the vibration isolation effect for the building M is exhibited.

At this time, when the lower guide rail 16 vibrates, the lower guide rail 16 swings around the Y axis. Since the upper guide rail 15 is attached to the lower guide rail 16 via the connecting member 17,
When the lower guide rail 16 rotates about the Y-axis, the upper guide rail 1 moves as the lower guide rail 16 swings.
5 also swings around the Y axis. When the upper guide rail 15 swings around the Y axis, the upper roller members 11, 1
There is a concern that 2 may come off the upper guide rail 15. In this respect, since the upper roller members 11 and 12 are provided with the pivots 11D and 12D, respectively, it is possible to follow the swing of the upper guide rail 15 around the Y axis. Therefore, even when the upper guide rail 15 swings, the upper roller members 11 and 12 are not moved by the upper guide rail 1.
It is possible to prevent it from deviating from 5.

The period in the X direction of the vibration isolator 1 can be adjusted by the refraction angle θ2 of the lower guide rail 16. Specifically, by increasing the refraction angle θ2, the period can be lengthened, and by decreasing the refraction angle θ2, the period can be shortened. In this way, the cycle of the vibration isolation device 1 can be adjusted only by adjusting the refraction angle (rail angle) θ2 of the lower guide rail 16. This lower guide rail 1
No. 6 is manufactured by bending the substantially central portion of the linearly provided member. For this reason, since it can be manufactured more accurately and easily than forming a curved surface, for example, the manufacturing becomes easier as compared with a vibration isolation device that needs to provide a curved surface.

Although not shown, the vibration in the Y-direction causes the upper roller members 11 and 12 to vibrate in the upper guide rail 15.
Constrained by moving along. When the upper roller members 11 and 12 move along the upper guide rail 15, this time, the lower guide rail 16 swings around the X axis and the lower roller members 13 and 14 may come off the lower guide rail 16. To be done. On the other hand, since the lower roller members 13 and 14 are provided with the pivots 13D and 14D, it is possible to follow the swing of the lower guide rail 16 around the X axis. Therefore, even if the lower guide rail 16 swings, the lower roller members 13, 1
4 can be prevented from coming off the lower guide rail 16.

Of course, the period in the Y direction in the vibration isolator 1 can be adjusted by the refraction angle θ1 in the upper guide rail 15. If the refraction angle θ1 is increased, the cycle can be lengthened, and if the refraction angle θ1 is decreased, the cycle can be shortened. Thus, the cycle of the vibration isolator 1 can be adjusted only by adjusting the refraction angle (rail angle) θ1 of the upper guide rail 15.

Further, as shown in FIG. 6, the rollers 11B and 11C of the upper roller member 11 are in line contact with the upper surface of the upper guide rail 15. Therefore, unlike the lower rolling portion found in the conventional pendulum type vibration isolation structure, there is no point contact, so that it is possible to prevent monopolar concentration due to point contact. It is not limited to the upper roller member 11 and the upper guide rail 15 that the roller and the guide rail are in line contact, not point contact, but other upper roller members 12 and upper guide rails 15, and lower roller members 13 and 14 and lower guide rails 16 Since the same can be said between the two, it is possible to prevent the concentration of one pole due to the point contact.

Furthermore, since the upper roller members 11 and 12 and the lower roller members 13 and 14 repeatedly vibrate while moving along the inclined guide rails 15 and 16, respectively, the vertical movement thereof can be made small. . Further, since the pair of upper roller members 11 and 12 are provided at the central position of the guide rail 15 protruding vertically, in the guide rail 15, both upper guide rails 15 are provided.
A vertical load is evenly applied to A and 15B. Therefore, the centers of the pair of upper roller members 11 and 12 can be easily returned to the neutral position just above the connecting portion of the upper guide rails 15A and 15B.

Although the upper guide rail 15 and the lower guide rail 16 are fixed to each other when the vibration isolator 1 is provided, an angle adjusting mechanism may be provided to facilitate the angle adjustment. This angle adjusting mechanism will be described. FIG. 7 is a perspective view showing the angle adjusting mechanism, and FIG. 8 is a side view thereof.

In FIGS. 7 and 8, an angle adjusting mechanism 20 is provided on the upper guide rail 15. The angle adjusting mechanism 20 includes a fixed base 21. The fixed base 21 is a long member, and has fixed portions 21A, 21B, and 21C provided at both ends and a central portion in the longitudinal direction, respectively. First lateral fixing portion 21A and second lateral fixing portion 21
Threaded rods 22 and 23 are bridged between B at both sides in the width direction, and the threaded rods 22 and 23 penetrate the central fixing portion 21C and the second lateral fixing portion 21B. It is provided. A right-hand thread is formed between the first lateral fixing portion 21A and the central fixing portion 21C of the threaded rods 22 and 23.
A left screw is cut between C and the second lateral fixing portion 21B.

A slide rail 24 protruding upward is provided between the threaded rods 22 and 23 of the fixed base 21. In addition, the twisted rod 2
A rod rotating mechanism 25 is provided at the tip of the second and second fixing portions 21B penetrating the second side fixing portion 21B. The rod rotation mechanism 25 includes a first gear 25 </ b> A coaxially attached to the first threaded rod 22 and a second threaded rod 23.
Second gear 25B coaxially attached to the first gear 2
Connection gear 25C for connecting 5A and the second gear 25B
And have. The connection gear 25C is provided with a handle 25D for rotating it. When the grip 25D is gripped and the connecting gear 25C is rotated, the first
The torsion rods 22 and 23 are configured to rotate in the same direction via the gear 25A and the second gear 25B.
A first rail base 26 is provided between the first lateral fixing portion 21A and the central fixing portion 21C, and the central fixing portion 21 is provided.
A second rail base 27 is provided between C and the second lateral fixing portion 21B. The first rail base 26 has 2
Female screw portions 26A and 26B are formed by cutting two screw holes, and a rail fitting groove 26C is formed at a lower center position. These female screw parts 26A and 26B have
The right-hand threaded portions of the threaded rods 22 and 23 are respectively screwed in, and the slide rail 24 is fitted in the rail fitting groove 26C. In addition, the second rail base 27 also has a female screw portion 27 in which two screw holes are cut.
A and 27B are formed and the rail fitting groove 27C is formed.
Are formed. The left-hand threaded portions of the threaded rods 22 and 23 are respectively screwed into these female threaded portions 27A and 27B, and the slide rail 24 is fitted into the rail fitting groove 27C. Therefore, by rotating the rod rotating mechanism 25, the central fixed portion 20C
The first rail base 26 and the second rail base 27 move in opposite directions along the slide rail 24 with the axis of symmetry as.

The first rail base 26 includes a hinge mechanism 2
The upper first guide rail 15A is attached via 8. Further, the second rail base 27 is provided with an upper second guide rail 15B via a hinge mechanism 29. Further, the upper first guide rail 15A and the upper second guide rail 15A
The tip end portions of the guide rails 15B are hinge mechanisms 1 respectively.
Connected by 5E.

In the angle adjusting mechanism 20, by rotating the rod rotating mechanism 25, the rail bases 26 and 27 move in a direction away from or toward the central fixed portion 21C, respectively. Rail base 26,2
By moving 7 in the direction away from the central fixing portion 21C, the hinge mechanism 15E connecting the upper first guide rail 15A and the upper second guide rail 15B opens, so that the refraction angle (rail angle) of the upper guide rail 15 is changed. Can be large. On the contrary, the rail bases 26, 2
By moving 7 toward the central fixed portion 21C, the hinge mechanism 15E connecting the upper first guide rail 15A and the upper second guide rail 15B is closed, so that the refraction angle (rail angle) of the upper guide rail 15 is changed. Can be made smaller. In this way, the refraction angle of the upper guide rail 15 can be easily adjusted.
Moreover, the rail bases 26 and 27 are fixed to the central fixing portion 21C.
Move symmetrically with the border as the boundary. Therefore, the left and right rails can always be kept at the same angle with respect to the fixed base 21.

The angle adjusting mechanism 20 can be turned upside down and used for the lower guide rail 16.
In this case, the lower first rail in the lower guide rail 16
The guide rail 16A is attached to the first rail base 26, and the lower second guide rail 16B is attached to the second rail base 2.
You can attach it to 7. Here, since the rail bases 26 and 27 of the angle adjusting mechanism 20 are installed on the slide rail 24 with a structure that can withstand the pulling force in the vertical direction, they can be used even when inverted. However, in reality, since the vertical load is always supported, it is considered that no tensile force is applied unless vertical vibration occurs.

In this way, the angle adjusting mechanisms 20 and 20 to which the upper guide rail 15 and the lower guide rail 16 are attached are fixed so that their longitudinal directions are orthogonal to each other, so that the upper guide rail 15 is similar to the above embodiment. And a lower guide rail 16 can be provided. The rail angle of the upper guide rail 15 and the rail angle of the lower guide rail 16 can be easily adjusted.

Further, in the angle adjusting mechanism 20, when the screw rods 22 and 23 alone cannot provide a sufficient degree of fixing to the rail bases 26 and 27 after the angle adjustment, bolts or square members are used. It is also possible to adopt a mode in which the rigidity is increased.

Further, as the angle adjusting mechanism, the one shown in FIG. 9 can be used. The angle adjusting mechanism 30 shown in FIG. 9 uses a wire, and a control box 32 is provided at the center of the fixing member 31. Rail bases 33 and 34 are arranged on both sides of the control box 32, and the rail bases 33 and 34 are movable on rails 35 laid below the rail bases 33 and 34. Wires 36 and 37 are unwound from the control box 32 to the respective rail bases 33 and 34, and the unwound length can be adjusted by the control box 32. The length of the wire 36 wound around the first rail base 33 from the control box 32 and the length of the wire 37 wound around the second rail base 34 are the same. Therefore, the rail bases 33 and 34 are arranged at positions symmetrical about the control box 32. On the upper surface of the control box 32, a handle 32A for operating the control box 32 to adjust the unwinding length of the wires 36, 37 is provided. After the position adjustment of the rail bases 33, 34 is completed, the rail bases 33, 34 are fixed to the fixing member 31 by the bolts B, B ....

A hinge mechanism 38 is attached to the first rail base 33.
The upper first guide rail 15A is attached to the second rail base 34 via the hinge mechanism 3 as well.
An upper second guide rail 15B is attached via 9. The tip ends of the upper first guide rail 15A and the upper second guide rail 15B are connected via a hinge mechanism 15E. Upper first guide rail 15A
Since the upper second guide rails 15B have the same length, the hinge mechanism 15E is located right above the control box 32.

In the angle adjusting mechanism 30 of this aspect, the wires 36, 3 unwound from the control box 32 are wound.
The rail angle of the upper guide rail 15 is adjusted by the length of 7. By increasing the unwinding length of the wires 36 and 37, the rail bases 33 and 34 move away from the control box 32, and the angle θ1 of the upper guide rail 15 increases. Conversely, the wires 36, 37
By reducing the unwinding length of the rail base 3
The rail angles θ1 of the upper guide rails 15 become smaller as the parts 3 and 34 approach the control box 32.

Here, when the wires 36 and 37 are unwound from the control box 32 to increase the unwinding length, the rail bases 33 and 34 are respectively moved to the control box 3 by the vertical load of the upper guide rail 15.
Move away from 2. In addition, the control box 32 winds the wires 36 and 37 to form the wire 3
When 6 and 37 are wound to reduce the unwinding length, the pulling force of the wires 36 and 37 causes the rail bases 33 and 34 to move toward the control box 32. In this way, the rail angle of the upper guide rail 15 can be easily adjusted.

By the way, in the angle adjusting mechanism 30,
When moving the rail bases 33, 34 in the direction away from the control box 32, the vertical load of the upper guide rail 15 is used. Here, when the angle adjusting mechanism 30 is turned upside down and used for the lower guide rail 16, the vertical load of the lower guide rail 16 cannot be used. Therefore, the rail bases 33 and 34 are separately provided.
In order to apply a force in a direction away from the control box 32, for example, a spring for urging in the expansion direction is provided between the control box 32 and the first rail base 33 and between the control box 32 and the second rail base 34. Can be intervened. By interposing such a spring, the upper guide rail 1
Without using the vertical load of 5, rail base 33,
34 can be moved away from the control box 32. In this way, the angle adjusting mechanism 30 can also be used for the lower guide rail 16.

In this way, the angle adjusting mechanisms 30 and 30 to which the upper guide rail 15 and the lower guide rail 16 are attached are fixed so that their longitudinal directions are orthogonal to each other, so that the upper guide rail 15 is similar to the above embodiment. And a lower guide rail 16 can be provided. The rail angle of the upper guide rail 15 and the rail angle of the lower guide rail 16 can be easily adjusted.

Next, a second embodiment of the present invention will be described.

FIG. 10 is a perspective view of the vicinity of the floor surface of a building including the vibration isolator according to the second embodiment, and FIG. 11 is a perspective view of the roller device.

As shown in FIG. 10, in the lower floor of the building M, three vibration isolation devices 4, 4, 4 according to the present embodiment are provided.
Is provided. These vibration isolation devices 4, 4, 4 have the same configuration. The vibration isolation device 4 is shown in FIG.
As also shown, the roller device 41 and the floor surface 2 of the building M
It has an upper guide rail 42 provided on the back surface of the structure and a lower guide rail 43 provided on the upper surface of the structure foundation 3.

As shown in FIG. 11, the roller device 41 has an upper link member 44 and a lower link member 45. The lower link member 45 is arranged such that its longitudinal direction is orthogonal to the longitudinal direction of the upper link member 44. Also, a longitudinal center portion of the upper link member 44,
The central portion of the lower link member 45 in the longitudinal direction is joined by a joining link member 46.

At both ends of the upper link member 44,
Upper roller members 47 and 48, which are a pair of upper moving bodies, are provided. The upper link member 44 and the upper roller members 47 and 48 constitute an upper moving member.
The pair of upper roller members 47 and 48 have the same structure. One upper roller member 47 has a rotary shaft 47A, and the rollers 4 are provided on both ends of the rotary shaft 47A.
7B and 47C are pivotally attached. Further, the central portion in the longitudinal direction of the rotary shaft 47A is supported by the pivot shaft 47D. The pivot 47D is one end surface 44A of the upper link member 44.
It is pinned and pivoted. Similarly, the upper roller member 48 on the other side similarly has a rotary shaft 48A, rollers 48B, 48.
C, and a pivot 48D. The pivot 48D of the upper roller member 48 is pin-joined to the other end surface 44B of the upper link member 44, which is located behind the one end surface 44A, and is pivotally supported. In addition, the upper roller members 47, 48
Since the rotary shafts 47A and 48A in FIG. 4 are rotatable around the parallel rotary shafts X4 and X5, respectively, the upper roller members 47 and 48 can move on a common straight rail. Further, the pivots 47D and 48D of both the upper roller members 47 and 48 are arranged in a straight line on the rotation axis Y6 along the longitudinal direction of the upper link member 44.
Therefore, both upper roller members 47 and 48 can swing about the rotation axis Y6 with respect to the upper link member 44.

Further, at both ends of the lower link member 45, lower roller members 49, 5 which are a pair of lower moving bodies are provided.
0 is provided. The lower link member 45 and the lower roller members 49 and 50 constitute a lower moving member. The pair of lower roller members 49 and 50 have the same structure. One of the lower roller members 49 has a rotary shaft 49.
A, and rollers 49B and 49C are pivotally attached to both ends of the rotary shaft 49A, respectively. Also, the rotating shaft 4
The central portion in the longitudinal direction of 9A is supported by a pivot 49D. The pivot 49D is the one end face 4 of the lower link member 45.
5A is pin-jointed and pivotally supported. Similarly, the lower roller member 50 on the other side similarly has the rotating shaft 50A, the rollers 50B, 5
0C and a pivot 50D. The pivot 50D of the lower roller member 50 is pivotally supported by being pin-joined to the other end surface 45B of the lower link member 45, which is located on the back side of the one end surface 45A. Also, the lower roller members 49, 5
Since the rotary shafts 49A and 50A at 0 can rotate about the parallel rotary shafts Y4 and Y5, the lower roller members 49 and 50 can move on one common linear rail. Further, the pivots 49D and 50D of both the lower roller members 49 and 50 are arranged in a straight line on the rotation axis X6 along the longitudinal direction of the lower link member 45. Therefore, both lower roller members 49 and 50 can swing with respect to the lower link member 45 about the rotation axis X6.

The upper guide rail 42 provided on the back surface of the floor surface 2 of the building M has a rail body 42A. The upper surface side of the rail body 42A is a flat surface and is fixed to the floor surface 2 of the building M. A ridge 42B is provided on the lower surface of the rail main body 42A so as to project downward, and a side portion of the ridge 42B on the lower surface of the rail main body 42 has an upper roller member 4a.
A guide surface 42C on which the 7, 48 travels and moves is formed. The guide surface 42C has a concave arc shape with the center recessed upward. The ridge 42B regulates the moving direction of the upper roller members 47, 48 running under the guide surface 42C so that the moving direction of the upper roller members 47, 48 is the longitudinal direction of the rail body 42A. The upper guide rail 42 is formed symmetrically with the longitudinal center portion as an axis.

The lower guide rail 43 provided on the upper surface of the structure foundation 3 has a rail body 43A. The lower surface side of the rail main body 43A is a flat surface and is fixed to the upper surface of the structure foundation 3. A ridge 43B is provided on the upper surface of the rail body 43A so as to project upward.
The side portion of the ridge 43B on the upper surface of the lower roller member 4 is
A guide surface 43C on which 9 and 50 run and move is formed. The guide surface 43C is in the shape of a concave arc whose center is recessed downward. The ridge 43B regulates the moving direction of the lower roller members 49, 50 traveling above the guide surface 43C so that the moving direction of the lower roller members 49, 50 is the longitudinal direction of the rail main body 43A. The lower guide rail 43 is formed symmetrically with the central portion in the longitudinal direction as an axis.

In the building M provided with the vibration isolator 4, 4, 4 having the above structure, the action when an earthquake or the like occurs will be described. Since the three vibration isolation devices 4, 4, 4 perform substantially the same movement, one of them will be mainly described and explained. As shown in FIG. 12A, when no earthquake or the like occurs, in the vibration isolator 4, the central portion of the lower link member 45 in the longitudinal direction is located at the central position of the lower guide rail 43. Similarly, the longitudinal center portion of the upper link member 44 is located at the central position of the upper guide rail 42.

When an earthquake or the like occurs from this state and vibration in the X direction occurs, the structure foundation 3 moves in the X direction as shown in FIG. 12 (b). Along with the movement of the structure foundation 3, the lower link member 45 and the lower roller members 49, 50 via the upper guide rail 42 and the roller device 41.
Moves in the X direction, then turns 180 degrees and starts moving to the opposite side. Thus, the lower roller member 4
The vibration of the floor surface 2 is suppressed by repeating the vibrations of 9, 50, and the vibration isolation effect of the vibration in the X direction on the building M is exhibited. Further, since the upper roller members 47, 48 rotate about the rotation axis Y6 with the vibration of the lower roller members 49, 50, the upper roller members 47, 48 are prevented from coming off the upper guide rail 42. .

Further, vibration in the Y direction is caused by the upper roller member 4
7 and 48 are suppressed by vibrating in the Y direction along the upper guide rail 42. At this time, since the lower roller members 49 and 50 rotate about the rotation axis X6, the lower roller members 49 and 50 are prevented from coming off the lower guide rail 43. In this way, vibrations in the X and Y directions when an earthquake or the like occurs can be suppressed. Further, in order to adjust the period of vibration in the vibration isolator 4, the radius of curvature of the lower guide rail 43 is adjusted for the period in the X direction, and the curvature of the upper guide rail 42 for the period in the Y direction. The radius may be adjusted, and further the length of the joining link member 46 may be adjusted. In this way, the cycle of vibration in the vibration isolation device 4 can be adjusted.

Here, in the vibration isolator 4 according to the present embodiment, the length of the joining link member 46 has little influence on the period adjustment, so even if the joining link member 46 is set short, the long period of the natural period is set. Can be easily achieved.
With respect to this point, taking the X direction as an example, the length of the joining link member 46 and the lower guide rail 43 in the present embodiment.
The radius of curvature of and the period of vibration in the X direction will be described. The relationship between the natural period T of the vibration isolator 4 in the X direction, the length L of the joining link member 46, and the radius of curvature R of the lower guide rail 43 is expressed by the following equation (2). The joining link member 46 includes an upper roller member 47 having the same upper and lower masses,
Since the 48 and the lower roller members 49 and 50 are attached, L / 2 corresponds to the distance from the upper end or the lower end of the joining link member 46 to the center of gravity of the roller device 41.

T = 2π {(R−L / 2) / g} ^1/2 (2)

However, g ... Gravity acceleration, R ... Radius of curvature of lower guide rail 43, L ... Length of joining link member 46

As can be seen from the equation (2), when the radius of curvature of the lower guide rail 43 is constant, the shorter the joint link member 46 is, the longer the natural period T of the vibration isolator 4 can be. it can. Therefore, it is not necessary to lengthen the joining link member 46 in order to lengthen the natural period T.

The rolling pendulum type vibration isolation structure disclosed in the above publication has the same natural period and horizontal stroke length (stroke length when the vibration-damped object vibrates in the horizontal direction with respect to the support). To obtain the joining link member 46
The length required for is explained. For example,
Suppose that the natural period T is set to 3 s and the horizontal stroke length is set to 250 mm. At this time, in the conventional rolling pendulum type vibration isolation structure, the radius of curvature R is 1000 mm in order to obtain a horizontal stroke length of 250 mm. The rotation angle of the column is 20 degrees. Substituting these numerical values into the above equation (1), the length L of the column portion is calculated to be approximately 750 mm.

On the other hand, in the vibration isolation device 4 according to this embodiment,
Under the same conditions, in order to obtain a horizontal stroke length of 250 mm, the radius of curvature of the lower guide rail 43 is 2500 mm. The rotation angle of the lower roller member 49 is about 7
It is degree. By substituting each of these numerical values into the above equation (2), the length L of the joining link member 46 is calculated to be 540 mm. The bulkiness of the vibration isolation device 4 itself depends on the joining link member 46.
The thickness of the upper and lower guide rails 42 and 43, and the radius of each roller in the upper and lower roller members 47 to 50 are added to the length L of the above. The bulkiness can be suppressed lower than the structure. Therefore, in the vibration isolation device 4 according to the present embodiment, the bulkiness of the device itself can be suppressed to a very low level.

Next, a third embodiment of the present invention will be described.

FIG. 13 is a perspective view of the vicinity of the floor surface of a building including the vibration isolator according to the third embodiment, and FIG. 14 is a perspective view of the vibration isolator.

As shown in FIG. 13, three vibration isolation devices 5, 5 and 5 according to the present embodiment are provided in the lower floor of the building M which is the object of vibration suppression. These vibration isolation devices 5, 5, 5 have the same configuration. As shown in FIG. 14, the vibration isolation device 5 is installed on the floor surface 2 of the building M.
Of the upper guide rails 51 attached to the lower surface of the
It has a lower guide rail 52 orthogonal to 1. The upper guide rail 51 has a valley shape in which the center projects downward, and the lower guide rail 52 has a mountain shape in which the center projects upward. Each of these guide rails 51 and 52 is formed symmetrically with the central portion in the longitudinal direction as an axis. Further, between the floor surface 2 and the structure foundation 3, a ring member 53 that surrounds the upper guide rail 51 and the lower guide rail 52 and has a circular shape in a plan view is provided. On the inner surface side of the ring member 53,
Four roller members 54 to 57 having the same structure are provided at equal intervals in the circumferential direction of the ring member 53. Of these, the upper first roller member 54 and the upper second roller member 54
The roller member 56 constitutes an upper moving member including a pair of moving bodies, and the lower first roller member 55 and the lower second roller member 57 also constitute a lower moving member including a pair of moving bodies. Then, the upper roller members 54 and 56 are
It is possible to move on a common rail. Further, the lower roller members 55 and 57 are also movable on a common rail.

The upper guide rail 51 is provided with an upper first guide rail 51A and an upper second guide rail 51B, and a bending portion projecting downward is formed between them. A ridge 51C is formed below the upper first guide rail 51A at the center in the width direction, and a ridge 51D is formed below the upper second guide rail 51B at the center in the width direction. ing. Then, the upper first roller member 54 moves under the upper first guide rail 51A,
The upper second roller member 56 moves under the upper second guide rail 51B. The ridges 51C and 51D guide the upper roller members 54 and 56 in the moving direction, respectively.

The lower guide rail 52 includes a lower first guide rail 52A and a lower second guide rail 52B, and a bent portion protruding upward is formed between them. A ridge 52C is formed on the lower first guide rail 52A at the widthwise central portion thereof, and a ridge 52D is also formed on the widthwise central portion thereof at the lower second guide rail 52B. ing. Then, the lower first roller member 55 moves on the lower first guide rail 52A.
The lower second roller member 57 moves on the lower second guide rail 52B. The ridges 52C and 52D guide the lower roller members 55 and 57 in the moving direction, respectively.

The roller members 54 to 57 have the same structure. The structure of the upper first roller member 54
The upper first roller member 54 has a rotary shaft 54A, and rollers 54B and 54C are pivotally attached to both ends of the rotary shaft 54A, respectively. The central portion in the longitudinal direction of the rotary shaft 54A is supported by the pivot shaft 54D. The pivot 54D is pivotally supported by being pin-joined to the inner surface side of the ring member 53. Similarly, the upper second roller member 56 includes the rotary shaft 56A, the rollers 56B and 56C,
And a pivot 56D. The pivot shaft 56D of the upper second roller member 56 is pivotally supported by being pin-joined to a position facing the pivot shaft 54D of the upper first roller member 54 on the inner surface side of the ring member 53.

Since the rotary shafts 54A and 56A of the upper roller members 54 and 56 are rotatable about the parallel rotary shafts Y7 and Y8, they can move under the upper guide rail 51 at the same time. Further, both upper roller members 5
The pivots 54D and 56D of the shafts 4 and 56 are aligned on the rotation axis Y9. Therefore, both upper roller members 54 and 56 are relatively swingable around the rotation axis X9 with respect to the ring member 53.

The lower roller members 55 and 57 have the same structure as the upper first roller member 54, respectively.
The lower first roller member 55 includes a rotating shaft 55A and a roller 55.
B, 55C, and pivot 55D, the lower second
The roller member 57 includes a rotating shaft 57A, rollers 57B and 57.
C, and a pivot 57D. The pivot 55D of the lower first roller member 55 is on the inner surface side of the ring member 53, and the pivot 54D of the upper first roller member 54.
Is pivotally supported by a pin connection at a position that is moved by 90 degrees in the circumferential direction from the position where it is pivotally supported. Also, the pivot 57D of the lower second roller member 57 is
Of the lower first roller member 55 on the inner surface side of No. 3
D is pivotally supported by a pin connection at a position opposite to the pivotally supported position.

Since the rotary shafts 55A and 57A of the lower roller members 55 and 57 are rotatable around the parallel rotary shafts X7 and X8, respectively, they can move under the upper guide rail 51 at the same time. Further, both lower roller members 5
The pivots 55D and 57D in 5 and 57 are arranged in a straight line on the rotation axis Y9. Therefore, the lower roller members 55 and 57 can swing relative to the ring member 53 about the rotation axis Y9.

The operation of the building M provided with the vibration isolator 5, 5, 5 having the above-described structure when an earthquake or the like occurs will be described. Since the three vibration isolation devices 5, 5, 5 perform substantially the same movement, one of them will be mainly described and described. As shown in FIG. 15A, in the vibration isolator 5, when the earthquake or the like does not occur, the ring member 5
3 is horizontal.

When an earthquake or the like occurs from this state and vibration in the Y direction occurs, the structure foundation 3 relatively moves in the Y direction as shown in FIG. 15 (b). As the structure 3 moves, the lower roller member 5 provided on the ring member 53
5 and 57 are ring members 5 with respect to the lower guide rail 52.
Move relatively with 3. At this time, the ring member 5
3 is in a tilted state from a horizontal state. When the vibration continues, the lower roller members 55 and 57 and the ring member 53 move in the direction reversed by 180 degrees. After that, the same vibration is repeated. Thus, the lower roller member 5
The ring member 53 moves via 5, 57 and the ring member 53 repeatedly vibrates, whereby the vibration of the floor surface 2 is suppressed, and the vibration isolating effect on the building M in the Y direction is exhibited. Further, with the vibration of the lower roller members 55 and 57, the pivots 54D and 56 of the upper roller members 54 and 56 are
Since D rotates about the rotation axis X9, the upper roller member 5
4, 56 are prevented from coming off the upper guide rail 51.

The vibration in the X-axis direction is suppressed by the upper roller members 54 and 56 vibrating in the X direction along the upper guide rail 51. At this time, since the lower roller members 55 and 57 rotate about the rotation axis Y9, the lower roller members 55 and 57 are prevented from coming off the lower guide rail 52. In this way, vibrations in the X and Y directions when an earthquake or the like occurs can be suppressed. Further, in order to adjust the cycle of vibration in the vibration isolator 5, the rail angles of the upper guide rail 51 and the lower guide rail 52 may be adjusted as in the first embodiment. Here, the adjustment of the cycle for the X-direction vibration can be performed by the rail angle of the upper guide rail 51, and the adjustment of the cycle for the Y-direction vibration can be performed by the rail angle of the lower guide rail 52. In addition, the larger the rail angle, the longer the natural period can be achieved. In this way, the cycle of vibration in the vibration isolation device 4 can be adjusted.

Further, similarly to the first embodiment, the rollers and the guide rails are in line contact between the roller members 54 to 57 and the guide rails 51 and 52, so that one-point concentration due to point contact occurs. Can be prevented.

Further, since the upper roller members 54 and 56 and the lower roller members 55 and 57 repeatedly vibrate while moving along the inclined guide rails 51 and 52, the vertical movement thereof can be made small. .

Further, the guide rail according to this embodiment is
It is also possible to adopt a mode in which it is attached to the angle adjusting mechanisms 20 and 30 shown in FIGS. 7 to 9 described in the first embodiment. When the angle adjusting mechanisms 20 and 30 are provided in the present embodiment, the angle adjusting mechanisms 20 and 30 are attached to the floor surface 2 and the structure foundation 3, respectively.

By the way, also in this embodiment, the bulkiness can be suppressed to a low level, and a specific example thereof will be described here.

Here, in order to compare with the conventional rolling pendulum type vibration isolation structure, considering that the horizontal stroke is 250 mm and the period is adjusted to 3 s, the center height of the ring at neutral is set to 200 mm. Then, the rail angle of each of the upper and lower guide rails 51 and 52 is set to 28 degrees. Then, the natural period of the vibration isolation device 5 becomes exactly 3 s. In this way, the center height of the ring at neutral is 200 mm.
Then, a desired natural period of 3s is obtained. Therefore,
The bulkiness of the vibration isolation device 5 as a whole is 40 at 200 mm × 2.
It can be 0 mm. As described in the second embodiment, in the conventional rolling pendulum type vibration isolation structure, the length of the column portion is 750 mm, so that the bulkiness of the vibration isolation device 5 can be sufficiently suppressed as compared with this. You can

The vibration isolation device shown in each of the above embodiments can also be used as a vibration damping device. As an example,
A vibration damping device having the structure shown in FIG. 16 can be used. The vibration damping device 60 includes the vibration isolation devices 1, 1, 1 described in the first embodiment on the structure foundation 3, and the floor surface of the building M is formed thereon. The vibration damping device 60 includes, in addition to the vibration isolation devices 1, 1, 1, a hydraulic cylinder 62 serving as an actuator, which is provided via a column 61 separately provided on the structure foundation 3. Hydraulic cylinder 62
Has a cylinder body 63 and a cylinder rod 64, and the cylinder rod 64 can move in the horizontal direction to move forward and backward with respect to the cylinder rod 64. Also,
A control device 65 is connected to the hydraulic cylinder 62. A vibration sensor (not shown) is connected to the control device 65, and detects the vibration generated in the structure foundation 3.

In the vibration damping device 60, when the structure foundation 3 vibrates due to an earthquake or the like, the hydraulic pressure generated by the hydraulic cylinder 6 causes the building M to cancel the vibration in accordance with the vibration.
The so-called active vibration damping given by 2 is performed. The control device 65 calculates the direction and the amplitude of the vibration given by the hydraulic cylinder 62 in order to suppress the vibration of the building M according to the vibration detected by the vibration sensor. Based on the calculated direction and amplitude of the vibration, etc., the cylinder rod 64 of the hydraulic cylinder 62 is moved forward and backward with respect to the cylinder main body 63, causing the building M to vibrate and the vibration generated from the structure foundation 3 to be generated. Damping the building M by offsetting it.

The vibration damping device shown in FIG. 17 can also be used. The vibration damping device 70 shown in FIG. 17 is provided on the top of a building M, such as a high-rise building, which is a vibration suppression target, and includes a support plate 71. On the support plate 71, the rocking plate 72 is installed with the vibration damping devices 1, 1, 1 shown in the first embodiment interposed. Furthermore, the swing plate 7
The weight 73 is placed on top of the second unit 2.

In this vibration damping device 70, an earthquake or the like occurs,
When the building M vibrates, the swing plate 7 in the vibration damping device 70
The weight 73 placed on 2 vibrates with a delay in the vibration of the building M. When the weight 73 vibrates, the weight 7
The center of gravity of 3 moves to control the building M.

As described above, the vibration isolator 1 shown in the first embodiment can also be used as the vibration dampers 60 and 70. Here, as the vibration isolator, the one shown in the first embodiment is used, but of course, the vibration isolator 2, 3 shown in the second and third embodiments may be used.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, although the vibration suppression target is a structure such as a building, it may be an appropriate one such as a table or a housing on which devices such as a computer are mounted or provided.

Further, in each of the above embodiments, the roller member, the guide rail and the like are directly provided on the floor surface and the structure foundation, but they are not directly attached to the floor surface and the structure foundation.
For example, it may be configured to be attached via a plate material or a bracket. Furthermore, although a roller member is used as the moving member, the moving member is not limited to this, and for example, a linear bearing or a slider may be used. Further, in each of the above-described embodiments, three vibration isolation devices are provided on the floor surface of the building, but the number is not limited to this, and an appropriate number may be provided according to the area and weight of the installation location. it can.

[0102]

As described above, according to the present invention, the natural period can be easily made longer, and the natural period can be installed even under a floor with a low height without increasing its bulkiness. It is possible to provide a vibration isolation device and a vibration damping device that are vibration suppression devices that can perform the above.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining a vibration isolation device according to a first embodiment.

FIG. 2 is a plan view of the vibration isolation device of FIG.

3 is a side view of the vibration isolation device of FIG. 1. FIG.

FIG. 4 is an enlarged perspective view of the vibration isolation device of FIG.

FIG. 5 is a side view showing a state in which the vibration isolation device shakes during an earthquake.

FIG. 6 is an enlarged front view of a contact portion between an upper roller member and an upper guide rail.

FIG. 7 is a perspective view showing an angle adjusting mechanism.

8 is a side view of the angle adjusting mechanism of FIG. 7. FIG.

FIG. 9 is a side view showing another angle adjusting mechanism.

FIG. 10 is a perspective view for explaining a vibration isolation device according to a second embodiment.

11 is a perspective view of a roller device in the vibration isolator of FIG.

FIG. 12 is a side view showing a state in which the vibration isolation device of FIG. 10 sways during an earthquake.

FIG. 13 is a perspective view for explaining a vibration isolation device according to a third embodiment.

14 is a perspective view of the vibration isolation device of FIG.

FIG. 15 is a side view showing a state where the vibration isolation device of FIG. 13 shakes during an earthquake.

FIG. 16 is a side view showing an example of a vibration damping device using a vibration isolation device.

FIG. 17 is a side view showing an example of another vibration damping device using the vibration isolation device.

[Explanation of symbols]

1, 4, 5 ... Vibration isolation device 2 ... Floor 3 ... Structural foundation (support) 11, 12 ... Upper roller member 13, 14 ... Lower roller member 15 ... Upper guide rail 16 ... Lower guide rail 17 ... Connection member 20, 30 ... Angle adjustment mechanism 41 ... Roller device 42 ... Upper guide rail 43 ... Lower guide rail 44 ... Upper link member 45 ... Lower link member 46 ... Joining link member 47, 48 ... Upper roller member 49, 50 ... Lower roller member 51 ... Upper guide rail 52 ... Lower guide rail 53 ... Ring member 54, 56 ... Upper roller member 55, 57 ... Lower roller member M: Building (Vibration suppression object)

Continued front page    (72) Inventor Hajime Kaneko             Kashima-ken, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo             Inside the corporation F term (reference) 3J048 AA07 BE15 CB21 DA01 EA38

Claims (11)

[Claims] 1. An upper moving member that is fixed to a vibration suppression target and that includes a pair of upper moving members that face each other, and an upper guide rail that guides the moving direction of the upper moving member, and is fixed to a support member. A pair of lower moving bodies that face each other, a lower moving member, and a lower guide rail that is provided in a direction orthogonal to the upper guide rail and guides the moving direction of the lower moving member. Of the upper moving bodies are pivotally supported by respective upper pivots about an axis connecting the pair of upper moving bodies, and the pair of lower moving bodies respectively connect the pair of lower moving bodies by the lower pivots. The upper guide rail is vertically pivoted between the pair of upper moving bodies, and the lower guide rail is Are refracted in the vertical direction between the lower movable body, the upper guide rail and the lower guide rail,
A vibration isolator connected by a connecting member and arranged between the upper moving member and the lower moving member. 2. The vibration isolator according to claim 1, wherein the upper guide rail has a mountain shape with a center protruding upward, and the lower guide rail has a valley shape with a center protruding downward. 3. The vibration isolator according to claim 1, wherein the upper moving body includes a pair of upper rollers, and the lower moving body includes a pair of lower rollers. 4. An upper rail fixed to a vibration suppression target, the guide surface of which forms a circular arc surface, and a pair of upper moving bodies which are guided and moved by the guide surface of the upper rail, are attached to the upper link. While equipped with an upper moving member,
A lower rail that is fixed to a support and is provided in a direction orthogonal to the upper rail, and has a guide surface that forms an arc surface, and a pair of lower moving bodies that move by being guided by the guide surface of the lower rail. A lower moving member attached to a lower link, the upper link member and the lower link member are joined by a joining link member so as to be orthogonal to each other, and the pair of upper moving members are arranged in a longitudinal direction of the upper link member. Is rotatably pivoted about an axis along the axis, and the pair of lower moving bodies are rotatably pivoted about an axis along the longitudinal direction of the lower link member. Vibration isolation device. 5. The vibration isolator according to claim 4, wherein the upper rail has a concave shape with a center recessed upward, and the lower rail has a concave shape with a center recessed downward. 6. The upper moving body includes a pair of upper rollers attached to both ends of the upper link member, and the lower moving body includes a pair of upper rollers attached to both ends of the lower link member. The vibration isolator according to claim 4 or 5, comprising a lower roller. 7. Attached to the lower surface of the vibration suppression object,
A valley-shaped upper guide rail member having a center projecting downward, and an upper guide rail member mounted on the upper surface of the support body, oriented in a direction orthogonal to the upper guide rail member, and having a central portion projecting upward. A mountain-shaped lower guide rail member is provided, and a ring member that surrounds the upper guide rail and the lower guide rail is disposed between the vibration suppression target and the support, and the inner surface side of the ring member respectively. An upper moving member and a lower moving member including a pair of moving bodies are attached, and the pair of moving bodies in both of the moving members have the ring via a pivot shaft that is rotatable around an axis connecting the pair of moving bodies to each other. A pair of moving bodies in the first moving member are movable along the upper guide rail member, and a pair of moving bodies in the second moving member. Body, vibration isolation devices, characterized in that is movable along the lower guide rail member. 8. The pair of moving bodies of the upper moving member are a pair of upper roller members attached to opposite positions on an inner surface side of the ring member with a protruding portion of the upper guide rail interposed therebetween. 8. The vibration isolator according to claim 7, wherein the pair of moving bodies of the lower moving member are a pair of lower roller members attached to opposite positions of the ring member with a protruding portion of the lower guide rail interposed therebetween. . 9. A first angle adjusting mechanism for adjusting a rail angle of a protruding portion of the upper guide rail, and a second angle adjusting mechanism for adjusting a rail angle of a protruding portion of the lower guide rail. The vibration isolator according to claim 3, claim 7, or claim 8. 10. An actuator is provided which vibrates the vibration suppression target object provided with the vibration isolation device according to claim 1 with respect to the support body. Vibration control device. 11. A weight is used in place of the vibration suppression target object in the vibration isolation device according to claim 1, and a vibration suppression target object is used in place of the support body. Vibration control device used.